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Commit Graph

39 Commits

Author SHA1 Message Date
Hans Wennborg
c1a311233c MC asm parser: allow ?'s in symbol names, and handle @'s in names in MS asm
This is another (final?) stab at making us able to parse our own asm output
on Windows.

Symbols on Windows often contain @'s and ?'s in their names. Our asm parser
didn't like this. ?'s were not allowed, and @'s were intepreted as trying to
reference PLT/GOT/etc.

We can't just add quotes around the bad names, since e.g. for MinGW, we use gas
to assemble, and it doesn't like quotes in some places (notably in .def
directives).

This commit makes us allow ?'s in symbol names, and @'s in symbol names for MS
assembly.

Differential Revision: http://llvm-reviews.chandlerc.com/D1978

llvm-svn: 193000
2013-10-18 20:46:28 +00:00
Tim Northover
c40d142f19 Support C99 hexadecimal floating-point literals in assembly
It's useful to be able to write down floating-point numbers without having to
worry about what they'll be rounded to (as C99 discovered), this extends that
ability to the MC assembly parsers.

llvm-svn: 188370
2013-08-14 14:23:31 +00:00
Jim Grosbach
45dec6440d AsmParser: More generic support for integer type suffices.
For integer constants, allow 'L', 'UL' as well as 'ULL' and 'LL'. This provides
better support for shared headers between .s and .c files that define bunches
of constant values.

rdar://9321056

llvm-svn: 176118
2013-02-26 20:17:10 +00:00
Matt Beaumont-Gay
c6ce965ace 'Hexadecimal' has two 'a's and only one 'i'.
llvm-svn: 176031
2013-02-25 18:11:18 +00:00
Rafael Espindola
ead97036ea Revert r15266. This fixes llvm.org/pr15266.
llvm-svn: 175173
2013-02-14 16:23:08 +00:00
Chad Rosier
5fc603a34e [ms-inline asm] Add support for lexing binary integers with a [bB] suffix.
This is complicated by backward labels (e.g., 0b can be both a backward label
and a binary zero).  The current implementation assumes [0-9]b is always a
label and thus it's possible for 0b and 1b to not be interpreted correctly for
ms-style inline assembly.  However, this is relatively simple to fix in the
inline assembly (i.e., drop the [bB]).

This patch also limits backward labels to [0-9]b, so that only 0b and 1b are
ambiguous.
Part of rdar://12470373

llvm-svn: 174983
2013-02-12 18:29:02 +00:00
Chad Rosier
0422258982 Update error message due to previous commit, r174926.
llvm-svn: 174927
2013-02-12 01:12:24 +00:00
Chad Rosier
eb4399962e [ms-inline asm] Add support for lexing hexidecimal integers with a [hH] suffix.
Part of rdar://12470373

llvm-svn: 174926
2013-02-12 01:00:01 +00:00
Chandler Carruth
a490793037 Use the new script to sort the includes of every file under lib.
Sooooo many of these had incorrect or strange main module includes.
I have manually inspected all of these, and fixed the main module
include to be the nearest plausible thing I could find. If you own or
care about any of these source files, I encourage you to take some time
and check that these edits were sensible. I can't have broken anything
(I strictly added headers, and reordered them, never removed), but they
may not be the headers you'd really like to identify as containing the
API being implemented.

Many forward declarations and missing includes were added to a header
files to allow them to parse cleanly when included first. The main
module rule does in fact have its merits. =]

llvm-svn: 169131
2012-12-03 16:50:05 +00:00
Preston Gurd
79d6f55f89 Add support for macro parameters/arguments delimited by spaces,
to improve compatibility with GNU as.

Based on a patch by PaX Team.

Fixed assertion failures on non-Darwin and added additional test cases.

llvm-svn: 164248
2012-09-19 20:36:12 +00:00
Jim Grosbach
00e28bee78 Handle missing newline at EOF more gracefully in MC AsmLexer.
If we see an EOF w/o a preceding end-of-line, return an EndOfStatement
token before returning the Eof token.

Based on patch by Stepan Dyatkovskiy.

llvm-svn: 139798
2011-09-15 16:52:06 +00:00
Jim Grosbach
36d319e831 Move state var to private class member.
llvm-svn: 139697
2011-09-14 16:37:04 +00:00
Kevin Enderby
4a91571f82 First step in supporting #line directives in assembler. This step parses the
#line directives with the needed support in the lexer.  Next will be to build
a simple file/line# table mapping source SMLoc's for later use by diagnostics.
And the last step will be to get the diagnostics to use the mapping for file
and line numbers.

llvm-svn: 139669
2011-09-13 23:45:18 +00:00
Chris Lattner
e34bef3d5e allow \r's in .s files.
llvm-svn: 136908
2011-08-04 19:31:26 +00:00
Rafael Espindola
f500121fcf Basic support for macros with explicit arguments.
We still don't handle

* default values
* :req
* :vararg
* \()

llvm-svn: 132656
2011-06-05 02:43:45 +00:00
Eric Christopher
b01713088d Match case for invalid constant error messages and add a new
test for invalid hexadecimals.

llvm-svn: 129326
2011-04-12 00:18:03 +00:00
Eric Christopher
a7c5e42cbe Lex, and then fail on invalid constants.
Testcase forthcoming.

rdar://8490596

llvm-svn: 129309
2011-04-11 22:24:56 +00:00
Jim Grosbach
213800d44b Clean up assembly statement separator support.
The MC asm lexer wasn't honoring a non-default (anything but ';') statement
separator. Fix that, and generalize a bit to support multi-character
statement separators.

llvm-svn: 128227
2011-03-24 18:46:34 +00:00
Jim Grosbach
79e4b6b045 More whitespace cleanup...
llvm-svn: 125388
2011-02-11 19:05:56 +00:00
Chris Lattner
2129ce0891 Generalize a previous change, fixing PR8855 - an valid large immediate
rejected by the mc assembler.

llvm-svn: 122557
2010-12-25 21:36:35 +00:00
Nick Lewycky
c85935836b Add missing standard headers. Patch by Joerg Sonnenberger!
llvm-svn: 122193
2010-12-19 20:43:38 +00:00
Roman Divacky
ed5bb14415 Add support for lexing single quotes like 'c'.
This fixed 8615.

llvm-svn: 122150
2010-12-18 08:56:37 +00:00
Daniel Dunbar
97fa30f53b MC/AsmLexer: Fix bug in source location for Slash token.
llvm-svn: 117298
2010-10-25 20:18:53 +00:00
Daniel Dunbar
7179426193 MC/AsmParser: Handle exponents in floating point literals.
llvm-svn: 114861
2010-09-27 20:12:52 +00:00
Daniel Dunbar
452f5345c5 MC/AsmParser: Handle a missed case of floating literals in the lexer.
llvm-svn: 114733
2010-09-24 17:10:26 +00:00
Daniel Dunbar
eacb42cfee MC/Lexer: Add 'Real' token type for floating point literals.
llvm-svn: 114718
2010-09-24 01:59:31 +00:00
Chris Lattner
115fdde871 fix rdar://7997827 - Accept and ignore LL and ULL suffixes on integer literals.
Also fix 0b010 syntax to actually work while we're at it :-)

llvm-svn: 111876
2010-08-24 00:43:25 +00:00
Daniel Dunbar
2be7d27677 MC: Move getLoc() to MCAsmLexer().
llvm-svn: 108154
2010-07-12 17:10:00 +00:00
Duncan Sands
f7b98e2b1e Convert some tab stops into spaces.
llvm-svn: 108130
2010-07-12 08:16:59 +00:00
Matt Fleming
0ca99c0262 Add support for parsing the ELF .type assembler directive.
llvm-svn: 104316
2010-05-21 11:36:59 +00:00
Kevin Enderby
cd585da505 Incorporate Daniel's suggestion and use !isdigit(CurPtr[0]) and not
CurPtr[0] == '\n' when testing the character after a "0b" when looking
to see if it part of a something like "jmp 0b".

llvm-svn: 104039
2010-05-18 18:09:20 +00:00
Kevin Enderby
438a36f66a Fixed the problem with a branch to "0b" that was not parsed by llvm-mc
correctly.  The Lexer was incorrectly eating the newline casusing it to branch
to address 0.  Updated the test case to use a "0:" label and a branch to "0b".

llvm-svn: 104038
2010-05-18 17:51:35 +00:00
Kevin Enderby
14c986967b Added support in MC for Directional Local Labels.
llvm-svn: 103989
2010-05-17 23:08:19 +00:00
Daniel Dunbar
a3731b17c0 Revert r103137, fix for $ in labels. It looks like we can't actually handle this
at the token level. Consider the following horrible test case:

  a = 1
  .globl $a
  movl ($a), %eax
  movl $a, %eax
  movl $$a, %eax

llvm-svn: 103178
2010-05-06 14:46:38 +00:00
Chris Lattner
ca80f41a4d fix rdar://7946934 - in some limited cases, the assembler should
allow $ at the start of a symbol name.

llvm-svn: 103137
2010-05-05 23:51:28 +00:00
Chris Lattner
124dc743bc implement mc asmparser support for '.', which gets the
current PC.  rdar://7834775

We now produce an identical .o file compared to the cctools
assembler for something like this:

_f0:
L0:
        jmp L1
        .long . - L0
L1:
        jmp A
        .long . - L1

        .zerofill __DATA,_bss,A,0

llvm-svn: 101227
2010-04-14 04:40:28 +00:00
Chris Lattner
58097a4b82 add a hack to allow parsing negative minint. rdar://7751341
llvm-svn: 98442
2010-03-13 19:25:13 +00:00
Chris Lattner
e773b145a2 stop using strtoll, it gives windows heartburn.
llvm-svn: 94167
2010-01-22 07:34:12 +00:00
Chris Lattner
c0e2ef62fa move some files out of the llvm-mc tool into the MCParser library so
other tools can link it.

llvm-svn: 94131
2010-01-22 01:58:08 +00:00